OUPV & 100-Ton Master · Drug and Alcohol
Under Coast Guard chemical-testing rules, a crewmember is presumed intoxicated when operating a commercial vessel at a blood alcohol concentration of:
- A0.02 or higher
- B0.04 or higher✓ Correct
- C0.08 or higher
- D0.10 or higher
Explanation
For operators of commercial vessels, the Coast Guard sets the limit at a BAC of 0.04. (For recreational vessels the limit aligns with the state standard, commonly 0.08.) Operating above 0.04 commercially is a violation regardless of apparent impairment.
Authority: 33 CFR 95.020
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